CEV headlamp lock ring

This ring is used to hold the H4 lamp in the headlight reflector on the Moto Guzzi 1993 SP3, SP 750 1990-1992, Targa 750 1990-1992, V50 PA 500 1992-2001, LeMans III 850 1981-1984, LeMans 1000 1983-1994, 850 T5 III 1985-1988, V35 III 1984-1987 and probably other European bikes of the era.  It has holes in the "handles" so that if you need to mount an LED lamp with a large heatsink or fan in your headlight reflector, you can cut the ring in half, fit it around the LED lamp, and screw the halves back together.  Get it printed in "strong and flexible".